feat: 重构全局搜索框为复合条件选择，支持按名称、俗名、规格进行精准查杂

inventory-backend/app/services/inbound/base_service.py

@@ -169,14 +169,23 @@ class MaterialBaseService:
                 .outerjoin(MaterialWarningSetting, MaterialBase.id == MaterialWarningSetting.base_id)
 
             if filters:
-                # 1. 关键词模糊搜索
-                if filters.get('keyword'):
-                    kw = f"%{filters['keyword']}%"
-                    query = query.filter(or_(
-                        MaterialBase.name.ilike(kw),
-                        MaterialBase.common_name.ilike(kw),
-                        MaterialBase.spec_model.ilike(kw)
-                    ))
+                # 1. 关键词精准搜索（支持指定字段）
+                search_field = filters.get('searchField', 'all')
+                keyword = filters.get('keyword')
+                if keyword:
+                    kw = f"%{keyword}%"
+                    if search_field == 'name':
+                        query = query.filter(MaterialBase.name.ilike(kw))
+                    elif search_field == 'common_name':
+                        query = query.filter(MaterialBase.common_name.ilike(kw))
+                    elif search_field == 'spec':
+                        query = query.filter(MaterialBase.spec_model.ilike(kw))
+                    else:  # 'all' 默认全局模糊匹配
+                        query = query.filter(or_(
+                            MaterialBase.name.ilike(kw),
+                            MaterialBase.common_name.ilike(kw),
+                            MaterialBase.spec_model.ilike(kw)
+                        ))
 
                 # 2. 精确筛选
                 company = filters.get('company')